P Yoshihiro Hasegawa #40
Boston Rebels BSA
Age: 29 | Bats: L | Throws: L | Morale: Unhappy    
12/31/2025
BNN Index | BSA | SCORES | STANDINGS | STATS | TEAMS | PLAYERS | TRANSACTIONS | HISTORY
P YOSHIHIRO HASEGAWA #40 - AGE: 29 - BATS: L - THROWS: L - MORALE: UNHAPPY
G GS Rec SV ERA IP HA HR BB K WHIP WAR
72 0 3-2 2 6.33 86.2 93 18 32 90 1.44 -0.2
PITCHING RATINGS (OSA)
Pot. Overall Vs Left Vs Right Pot.
Stuff 20
Movement 12
Control 12
PITCHING RATINGS
Pitch Cur. Pot.
Fastball - 20
Knuckle Curve - 20
 
 
 
OTHER PITCHING RATINGS
Velocity 97-99 Mph
Stamina 2
Suggested Role Strictly BP
Groundball Percentage 47 %
Hold Runners 20
Defense 11
RUN/BUNT RATINGS
Running Speed: 1
Stealing Ability: 2
Baserunning Inst.: 5
Sacrifice Bunt: 13
Bunt for Hit: 1
   
GAME LOG, LAST 10 GAMES
Date Vs. Result Start IP H R ER BB K Dec
09/18/2025 @ BIR Win, 6-4 1.1 0 0 0 0 1 Win
09/17/2025 @ NFF Win, 8-6 0.1 1 0 0 0 0
09/12/2025 PLY Win, 7-6 0.0 1 1 1 0 0
09/07/2025 @ NAS Win, 12-5 1.2 3 0 0 1 3
09/04/2025 @ NYK Win, 13-8 2.0 0 0 0 0 3
09/03/2025 @ NYK Loss, 5-10 1.0 4 3 3 0 1
08/31/2025 NFF Loss, 3-7 2.0 1 0 0 0 2
08/29/2025 NFF Loss, 6-7 1.1 0 0 0 0 2
08/26/2025 LCC Loss, 5-6 1.0 1 0 0 0 2
08/24/2025 MAD Loss, 1-3 2.0 2 0 0 0 2
PERSONALITY
Leader Ability:High
Loyalty:High
Desire f. Win:Very High
Greed:Very High
Intelligence:Normal
Work Ethic:High
Birthday:02/16/1996
Born in:Shimizu, SHI
Nationality:Japanese
Height:6' 5"
Weight:220 lbs
Local Popularity:Fair
National Pop.:Insignificant
STATUS
Contract:Major League Contract
Salary:$6,000,000
Signed Through:2028 Season
Major Service:9 Years, 22 Days
Service This Yr:184 Days
40-Man Service:9 Years, 22 Days
Pro Service:12 Years
Arbitration Eligibility:Not eligible, free agent after contract expires!
Option Years:3 option years left
Contract Extension: -
Drafted:-
BASEBALL STARS ASSOCIATION 2025 PITCHING STATS
Pitching G GS W L SV ERA IP HA R ER HR BB K CG CG% SHO QS QS%
Overall 72 0 3 2 2 6.33 86.2 93 62 61 18 32 90 0 0.0 0 0 0.0
Pitching SVO BS SV% RA GF R/9 H/9 K/9 BB/9 FIP WHIP FIP- WAR BABIP        
Overall 20 2 50.0 72 17 13.29 9.66 9.35 3.32 5.08 1.44 112 -0.2 .311        
Pitching AB H 2B 3B HR R BB K SF SH HP AVG OBP SLG OPS      
vs. LHB 132 42 5 1 8 30 9 33 1 1 1 .318 .364 .553 .917      
vs. RHB 215 51 8 0 10 32 23 57 1 0 2 .237 .315 .414 .729      
BASEBALL STARS ASSOCIATION 2025 PITCHING SPLITS
Split G GS W L SV ERA IP HA R ER HR BB K  
April 9 0 1 0 1 2.45 11.0 13 3 3 2 1 10  
May 12 0 0 0 0 3.52 15.1 10 6 6 2 10 16  
June 12 0 1 0 0 6.00 15.0 13 11 10 3 4 19  
July 21 0 0 0 0 9.89 23.2 32 26 26 7 13 20  
August 12 0 0 2 1 7.04 15.1 16 12 12 3 3 17  
September 6 0 1 0 0 5.68 6.1 9 4 4 1 1 8  
Spring Training 14 0 0 0 0 2.81 16.0 17 5 5 2 3 14  
Last Year 88 0 6 3 1 3.41 68.2 60 28 26 7 26 83  
2 Years Ago 54 0 4 4 3 4.01 58.1 36 27 26 11 25 64  
Career 565 0 37 28 66 3.53 612.0 477 251 240 74 261 687  
Home 34 0 1 0 1 9.52 40.2 53 44 43 11 21 47  
Road 38 0 2 2 1 3.52 46.0 40 18 18 7 11 43  
Grass 68 0 3 2 2 6.72 81.2 90 62 61 18 31 87  
Turf 4 0 0 0 0 0.00 5.0 3 0 0 0 1 3  
Day 2 0 0 0 0 3.86 2.1 1 1 1 1 0 2  
Night 70 0 3 2 2 6.40 84.1 92 61 60 17 32 88  
As Reliever / Substitution 72 0 3 2 2 6.33 86.2 93 62 61 18 32 90  
CAREER PITCHING STATS
Year/Team/League Age G GS W L SV ERA IP HA R ER HR BB K CG SHO WHIP BABIP FIP WAR ERA+
2016 Jacksonville - BSA 20 9 0 2 1 0 0.71 12.2 5 1 1 0 11 14 0 0 1.26 .217 3.14 0.2 615
2017 Jacksonville - BSA 21 49 0 2 3 2 2.95 61.0 50 20 20 6 38 69 0 0 1.44 .295 3.92 0.5 148
2018 Jacksonville - BSA 22 59 0 4 0 2 1.02 70.2 34 8 8 1 28 79 0 0 0.88 .201 2.14 2.1 416
2019 Jacksonville - BSA 23 65 0 4 4 31 2.12 68.0 45 17 16 6 26 71 0 0 1.04 .232 3.35 0.9 197
2020 Birmingham - BSA 24 66 0 3 5 13 4.12 63.1 65 31 29 9 34 70 0 0 1.56 .339 4.26 0.2 104
2021 Birmingham - BSA 25 45 0 4 3 9 4.20 60.0 49 31 28 7 20 73 0 0 1.15 .290 3.35 0.8 102
2022 Birmingham - BSA 26 58 0 5 3 3 3.59 62.2 40 26 25 9 21 74 0 0 0.97 .225 3.69 0.6 118
2023 Birmingham - BSA 27 54 0 4 4 3 4.01 58.1 36 27 26 11 25 64 0 0 1.05 .192 4.63 -0.1 108
2024 Boston - BSA 28 88 0 6 3 1 3.41 68.2 60 28 26 7 26 83 0 0 1.25 .317 3.13 1.3 128
2025 Boston - BSA 29 72 0 3 2 2 6.33 86.2 93 62 61 18 32 90 0 0 1.44 .311 5.08 -0.2 70
Total BSA 565 0 37 28 66 3.53 612.0 477 251 240 74 261 687 0 0 1.21 .270 3.73 6.2 165
CAREER MINOR LEAGUE PITCHING STATS
Year/Team/League Age G GS W L SV ERA IP HA R ER HR BB K CG SHO WHIP BABIP FIP WAR ERA+
2013 Nashua - A 17 8 0 3 0 1 2.08 8.2 7 2 2 0 3 7 0 0 1.15 .292 2.67 0.1 144
2013 Buffalo - AA 17 5 0 0 1 0 18.00 3.0 7 8 6 2 3 1 0 0 3.33 .385 14.15 -0.4 22
2013 Myrtle Beach - A 17 14 0 0 0 11 0.00 15.0 5 0 0 0 7 19 0 0 0.80 .185 1.77 0.3 999
2014 Myrtle Beach - A 18 44 0 2 2 25 2.14 46.1 35 16 11 3 16 60 0 0 1.10 .308 2.48 0.7 153
2014 Montgomery - AA 18 2 0 0 0 0 0.00 3.0 4 0 0 0 2 4 0 0 2.00 .571 2.45 0.1 999
2015 Myrtle Beach - A 19 56 0 3 5 35 1.93 60.2 35 15 13 4 26 82 0 0 1.01 .246 2.83 1.0 204
2016 Montgomery - AA 20 58 0 5 4 7 3.41 66.0 54 26 25 8 26 103 0 0 1.21 .333 3.32 1.4 145
Total SNL (28 & Under) 60 0 5 4 7 3.26 69.0 58 26 25 8 28 107 0 0 1.25 .345 3.28 182.5
Total ESL (28 & Under) 5 0 0 1 0 18.00 3.0 7 8 6 2 3 1 0 0 3.33 .385 14.15 22.1
Total APL (24 & Under) 122 0 8 7 72 1.79 130.2 82 33 26 7 52 168 0 0 1.03 .267 2.57 273.5
CAREER FIELDING STATS
Year/Team/League POS G GS PO A DP TC E PCT INN RNG ZR EFF PB RSTA RTO RTO%
2016 Jacksonville - ML P 9 0 0 1 0 1 0 1.000 12.2 0.71 +0.1 1.064
2017 Jacksonville - ML P 49 0 6 6 0 13 1 .923 61.0 1.77 +0.3 1.056
2018 Jacksonville - ML P 59 0 1 10 0 12 1 .917 70.2 1.40 -0.2 .957
2019 Jacksonville - ML P 65 0 4 10 1 14 0 1.000 68.0 1.85 +0.9 1.146
2020 Birmingham - ML P 65 0 5 5 1 10 0 1.000 63.1 1.42 +0.5 1.059
2021 Birmingham - ML P 44 0 1 7 1 8 0 1.000 60.0 1.20 +0.4 1.063
2022 Birmingham - ML P 56 0 6 3 1 10 1 .900 62.2 1.29 +0.3 1.066
2023 Birmingham - ML P 50 0 3 4 1 8 1 .875 58.1 1.08 -0.2 .844
2024 Boston - ML P 75 0 0 7 0 7 0 1.000 68.2 0.92 +0.4 1.054
2025 Boston - ML P 65 0 3 12 1 15 0 1.000 86.2 1.56 +0.0 .974
TOTAL P 537 0 29 65 6 98 4 .959 612.0 1.38 +2.5 1.031
PLAYER HISTORY
12/29/2012 Signed a minor league contract with the New York Knights organization. Was discovered in Japan.
01/01/2013 OSA scouting updated ratings (potential): Stuff: - (13); Movement: - (10); Control: - (10).
04/01/2013 Named the #96 prospect in the BSA
05/01/2013 Was granted free agency by the New York organization.
05/19/2013 Signed a minor league contract with the Orlando Calrissian organization.
06/01/2013 Injured on 05/28/2013, diagnosed with acute elbow soreness, will miss 2 months.
06/10/2013 Was traded by the Orlando Calrissian to the Jacksonville Jackhammers in exchange for 1B Jorge Vázquez.
01/01/2014 OSA scouting updated ratings (potential): Stuff: - (16); Movement: - (12); Control: - (11).
04/01/2014 Named the #82 prospect in the BSA
01/01/2015 OSA scouting updated ratings (potential): Stuff: - (17); Movement: - (10); Control: - (10).
05/31/2015 Injured on 05/29/2015, diagnosed with a strained abdominal muscle, will miss 2 weeks.
01/01/2016 OSA scouting updated ratings (potential): Stuff: - (20); Movement: - (13); Control: - (11).
11/23/2016 Received a 1-year contract worth a total of $400,000 through automatic renewal.
01/01/2017 OSA scouting updated ratings (potential): Stuff: - (20); Movement: - (12); Control: - (11).
11/21/2017 Received a 1-year contract worth a total of $400,000 through automatic renewal.
01/01/2018 OSA scouting updated ratings (potential): Stuff: - (20); Movement: - (12); Control: - (11).
07/06/2018 Was selected to the 2018 Baseball Stars Association All-Star Game.
11/17/2018 Received a 1-year contract worth a total of $2,750,000 through arbitration.
11/28/2018 Signed a 4-year contract extension worth a total of $14,600,000 with the Jacksonville Jackhammers organization.
01/01/2019 OSA scouting updated ratings (potential): Stuff: - (20); Movement: - (13); Control: - (12).
07/07/2019 Was selected to the 2019 Baseball Stars Association All-Star Game.
01/01/2020 OSA scouting updated ratings (potential): Stuff: - (20); Movement: - (12); Control: - (12).
01/01/2021 OSA scouting updated ratings (potential): Stuff: - (20); Movement: - (14); Control: - (12).
01/01/2022 OSA scouting updated ratings (potential): Stuff: - (20); Movement: - (13); Control: - (12).
01/01/2023 OSA scouting updated ratings (potential): Stuff: - (20); Movement: - (13); Control: - (12).
11/23/2023 Became a free agent.
01/01/2024 OSA scouting updated ratings (potential): Stuff: - (20); Movement: - (14); Control: - (12).
01/07/2024 Signed a 5-year contract worth a total of $21,000,000 with the Boston Rebels organization.
01/01/2025 OSA scouting updated ratings (potential): Stuff: - (20); Movement: - (14); Control: - (12).
09/18/2025 Injured (torn UCL (Tommy John surgery)), out for 12-13 months.
LEADERBOARD APPEARANCES
Year G Rank
2024 88 4
Year SV Rank
2019 31 10
Year RA Rank
2024 88 4
Year GF Rank
2019 55 5
Year SHO Rank
2016 0 9
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